Patent US4838939A successfully refreshed from Google Patents.
US4838939A
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US
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Composition particularly adapted to damping sheets for vehicles
Assignee: Nihon Tokushu Toryo Co Ltd
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Filing: 1987-12-17
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Granted: 1989-06-13
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Expires: 2007-12-17
Abstract
Abstract Compositions particularly adapted to the damping sheet are provided. They contain a binder component and a filler component consisting of inorganic fillers and an organic filler. The organic filler occupies from 1 to 25 parts by weight of the total amount of the filler and it is an organic fibrous filler having the fiber length of from about 50 to about 300μ, the mean length being about 100μ. Quick lime occupies from 0.05 to 10 parts by weight of the total amount of the filler as one of the inorganic fillers. The compositions possess distinguished properties when used as the damping sheet for vehicles.
Inventors
- 👤 Shigeru Kanda
- 👤 Manabu Shibata
- 👤 Masayoshi Ono
- 👤 Michikazu Okano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08L; C08L95/00; Y; Y10; Y10S; Y10S106/00; Y10S106/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A composition particularly adapted to damping sheets containing a binder component and a filler component consiting of inorganic fillers and an organic filler, which comprises from 1 to 25 parts by weight, based on the total amount of the filler, of an organic fibrous filler having a fiber length of from about 50 to about 300 μ, the means length being about 100μ, and from 0.05 to 10 parts by weight, based on the total amount of the filler, of quick lime, as one of the inorganic fillers.
Claim 2
Dependent Claim
88 words
A composition particularly adapted to damping sheets containing a binder component and a filler component consiting of inorganic fillers and an organic filler, which comprises from 1 to 25 parts by weight, based on the total amount of the filler, of an organic fibrous filler having a fiber length of from about 50 to about 300 μ, the means length being about 100μ, and from 0.05 to 10 parts by weight, based on the total amount of the filler, of quick lime, as one of the inorganic fillers.
Claim 3
Dependent Claim
31 words
A composition as claimed in claim 1, wherein the content of the organic fibrous filler is from 1 to 11.5 parts by weight, based on the total amount of the filler.
Claim 4
Dependent Claim
13 words
A composition as claimed in claim 1, wherein the binder component is asphalt.
Claim 5
Dependent Claim
21 words
A composition as claimed in claim 3 which further contains 10 parts by weight or less of an asphalt denaturing agent.
Claim 6
Dependent Claim
12 words
A damping sheet for vehicles manufactured from the composition of claim 1.
References Cited (Backward Citations)
US2178770A
Cited
US3808164A
Cited
US4168178A
Cited
JPS565469A
Cited
US4412864A
Cited
JPH05250522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |